#374B7D#374B7D

#374B7D is a dark, moderate blue. Relative luminance 0.073; OKLCH L 42.1% C 0.087 H 266.3°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#374B7D
RGB	rgb(55, 75, 125)
HSL	hsl(223, 39%, 35%)
HSV	hsv(223, 56%, 49%)
CMYK	cmyk(56%, 40%, 0%, 51%)
CIE-LAB	lab(32.53, 8.01, -30.76)
CIE-LCH	lch(32.53, 31.79, 284.59°)
OKLab	oklab(42.11% -0.0057 -0.0871)
OKLCH	oklch(42.11% 0.087 266.3)
XYZ	xyz(7.7921, 7.3245, 20.4012)
Luminance	0.0732 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#374B7D #7D6937

analogous

#376E7D #374B7D #46377D

triadic

#374B7D #7D374B #4B7D37

tetradic

#374B7D #7D376E #7D6937 #377D46

square

#374B7D #7D376E #7D6937 #377D46

split-complementary

#374B7D #7D4637 #6E7D37

monochromatic

#121828 #243152 #374B7D #4A64A7 #6F86C0

Accessibility & contrast

On white

8.52

#374B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#374B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #374B7D

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##374B7D	#FFFFFF	#000000	##FFFFFF
##374B7D	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37507F

Deuteranopia (green-blind)

#2E4A7C

Tritanopia (blue-blind)

#12565E

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #374b7d;
/* rgb */ color: rgb(55, 75, 125);
/* oklch */ color: oklch(42.1% 0.087 266.3);

Tailwind

colors: {
  custom: {
    50: '#737da3',
    500: '#374b7d',
    950: '#000000',
  },
}

SCSS

$custom: #374b7d;
$custom-light: #737da3;
$custom-dark: #000000;

JSON

{
  "hex": "#374b7d",
  "rgb": {
    "r": 55,
    "g": 75,
    "b": 125
  },
  "hsl": {
    "h": 222.857,
    "s": 38.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.42113,
    "c": 0.0873,
    "h": 266.3
  },
  "luminance": 0.07325
}

Semantic roles & 50–950 ramp

primary

#374B7D

secondary

#A89667

accent

#AD59CF

background

#F7F7FA

surface

#EDEEF3

border

#C8C9CD

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #374B7D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →